Ignorance is Bliss??

Someone once said, "Ignorance is bliss." Is it? If you don't know that you don't know, you'll be content knowing not that you know not. One definition of pride is an over estimation of oneself. In the case of blissful ignorance it is overestimating the knowledge one has. What's the cure? Lao Tzu once said a very long time ago, "Humility is the foundation of learning." So, let Humility be thy goal. This is not particularly easy to do but if we don't, life often has its way of humbling us. If we already think we know something even when we don't, there will be no motivation to learn what we don't know. We will remain content in our ignorance. How can YOU be certain that what you believe is true; actually factual?